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https://github.com/ZDoom/gzdoom-gles.git
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74 lines
1.8 KiB
C++
74 lines
1.8 KiB
C++
//
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// Copyright (C) 1993-1996 by id Software, Inc.
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//
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// This source is available for distribution and/or modification
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// only under the terms of the DOOM Source Code License as
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// published by id Software. All rights reserved.
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//
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// The source is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
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// for more details.
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//
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#include <stdlib.h>
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#include "templates.h"
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#include "doomdef.h"
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#include "m_bbox.h"
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#include "i_system.h"
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#include "p_lnspec.h"
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#include "p_setup.h"
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#include "swrenderer/drawers/r_draw.h"
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#include "swrenderer/plane/r_visibleplane.h"
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#include "a_sharedglobal.h"
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#include "g_level.h"
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#include "p_effect.h"
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#include "doomstat.h"
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#include "r_state.h"
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#include "v_palette.h"
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#include "r_sky.h"
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#include "po_man.h"
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#include "r_data/colormaps.h"
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#include "r_memory.h"
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namespace swrenderer
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{
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void *RenderMemory::AllocBytes(int size)
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{
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size = (size + 15) / 16 * 16; // 16-byte align
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if (UsedBlocks.empty() || UsedBlocks.back()->Position + size > BlockSize)
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{
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if (!FreeBlocks.empty())
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{
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auto block = std::move(FreeBlocks.back());
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block->Position = 0;
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FreeBlocks.pop_back();
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UsedBlocks.push_back(std::move(block));
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}
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else
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{
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UsedBlocks.push_back(std::make_unique<MemoryBlock>());
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}
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}
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auto &block = UsedBlocks.back();
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void *data = block->Data + block->Position;
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block->Position += size;
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return data;
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}
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void RenderMemory::Clear()
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{
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while (!UsedBlocks.empty())
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{
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auto block = std::move(UsedBlocks.back());
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UsedBlocks.pop_back();
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FreeBlocks.push_back(std::move(block));
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}
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}
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std::vector<std::unique_ptr<RenderMemory::MemoryBlock>> RenderMemory::UsedBlocks;
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std::vector<std::unique_ptr<RenderMemory::MemoryBlock>> RenderMemory::FreeBlocks;
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}
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